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是take some exercises 还是take some exercise

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是take some exercises 还是take some exercise
是take some exercises 还是take some exercise
应该是take some exercise.exercise一般为不可数名词,意为“锻炼”,但当表示“做练习题”(具体做什么练习)时,可以用exercises.
例如:He always does exercise in themorning. 他经常晨练.
He always does some exercises in themorning. 他经常早上作练习(习题)